1. The state or fact of something being possibly nothing.
2. The state or fact that something might never happen.
3. Positive integers may eventually become negative integers.

"There is a possinility that your investment will multiply in value by ten times."
"The project has a possinility of becoming an economically viable mine in the near future."
“A $5,000 investment has a possinility to become $30,000, or more.”